Summary: apply: apply…to…/ apply for / apply oneself to /apply to equal: be equal to sth./ be equal to doing sth. /equal sb. in sth. demand: demand to do sth. /demand sth. of sb. /demand of sb.to do sth./demand that… convenient: be convenient to do sth / It is convenient for sb.to do sth. / at one’s convenience / for the convenience of